folder lock MS-DOS FORMATE

just rename it by ".bat" extention.
for example: folder lock.txt , folder lock.bat
AFTER THAT, CLICK ON FILE
TYPE 'Y' FOR OPEN LOCKER
WHEN OPEN LOCKER ADD FILE TO LOCK
FOR HIDE LOCKER TYPE 'N'
WHEN LOCKER HIDE
just rename it by ".txt" extention.
for example: folder lock.txt